MEG Data Analysis Report

report_item Subject Information

ID Name Age Gender
MEG B002 Sample 2 20 Male

report_item MEG Information

# Sensors Date Duration # Segments
306 mne_anonymize 60.939 minutes 8

report_item MEG-MRI Automated Coregistration

Fig 1-1. Initial labelling for the fiducials

Fig 1-1. Initial labelling for the fiducials

Fig 1-2. Final MEG-MRI coregistration

Fig 1-2. Final MEG-MRI coregistration

report_item IED Number and Timing

Fig 2-1. IED distribution in various sublobar regions over time for segment 1 of MEG recordings

Fig 2-1. IED distribution in various sublobar regions over time for segment 1 of MEG recordings

Fig 2-2. IED distribution in various sublobar regions over time for segment 2 of MEG recordings

Fig 2-2. IED distribution in various sublobar regions over time for segment 2 of MEG recordings

Fig 2-3. IED distribution in various sublobar regions over time for segment 3 of MEG recordings

Fig 2-3. IED distribution in various sublobar regions over time for segment 3 of MEG recordings

Fig 2-4. IED distribution in various sublobar regions over time for segment 4 of MEG recordings

Fig 2-4. IED distribution in various sublobar regions over time for segment 4 of MEG recordings

Fig 2-5. IED distribution in various sublobar regions over time for segment 5 of MEG recordings

Fig 2-5. IED distribution in various sublobar regions over time for segment 5 of MEG recordings

Fig 2-6. IED distribution in various sublobar regions over time for segment 6 of MEG recordings

Fig 2-6. IED distribution in various sublobar regions over time for segment 6 of MEG recordings

Fig 2-7. IED distribution in various sublobar regions over time for segment 7 of MEG recordings

Fig 2-7. IED distribution in various sublobar regions over time for segment 7 of MEG recordings

Fig 2-8. IED distribution in various sublobar regions over time for segment 8 of MEG recordings

Fig 2-8. IED distribution in various sublobar regions over time for segment 8 of MEG recordings




Table 1. Number of epochs tested positive from a particular brain region

Brain regions LT RT LP RP LO RO LF RF
Number of IED events 21 867 9 61 0 46 2 168
Percentage 1.79% 73.85% 0.77% 5.2% 0.0% 3.92% 0.17% 14.31%

LT = left temporal; RT = right temporal; LP = left parietal; RP = right parietal;

LO = left occipital; RO = right occipital; LF = left frontal; RF = right frontal

report_item Source Imaging of Detected IED Events

Fig 3-1. MSI of IED events using ECD

Fig 3-1. MSI of IED events using ECD

Fig 3-2. MSI of IED events using dSPM

Fig 3-2. MSI of IED events using dSPM

report_item Sensor-level Details of Detected IED Cluster(s)

Fig 4-1. Sensor waveforms and topographical maps of cluster 1

Fig 4-1. Sensor waveforms and topographical maps of cluster 1

Fig 4-2. Sensor waveforms and topographical maps of cluster 2

Fig 4-2. Sensor waveforms and topographical maps of cluster 2

report_item Preliminary Conclusions

60.939 minutes MEG recording suggests a generator at ['right temporal', 'right frontal'].

181 IED events and 2 IED cluster(s) have been found after goodness-of-fit threshold filtering and local-outlier-factor algorithm performing.

report_item Analysis Information

Name: Batch MSI analysis.

Description: Source reconstruction for all the IED events.

Input: Raw MEG recordings & T1-weighted image.

Output: MEG-MRI coregistration results; IED detection results; MSI of all the detected IED events; Sensor-level results of IED clustering analysis.

Parameters: Band pass-filtering = 1-100 Hz; Head model = Overlapping sphere; Source space = Surface-based cortex; Source imaging algorithms = ECD and dSPM methods.